280464100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1559}}^1$

素因数の和:1837

約数の個数: 72

約数和(自身を含む): 698705280

約数和(自身を除く): 418241180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 257, 350, 514, 700, 1028, 1285, 1559, 1799, 2570, 3118, 3598, 5140, 6236, 6425, 7196, 7795, 8995, 10913, 12850, 15590, 17990, 21826, 25700, 31180, 35980, 38975, 43652, 44975, 54565, 77950, 89950, 109130, 155900, 179900, 218260, 272825, 400663, 545650, 801326, 1091300, 1602652, 2003315, 2804641, 4006630, 5609282, 8013260, 10016575, 11218564, 14023205, 20033150, 28046410, 40066300, 56092820, 70116025, 140232050, 280464100]

約数ペア:

[(1, 280464100), (2, 140232050), (4, 70116025), (5, 56092820), (7, 40066300), (10, 28046410), (14, 20033150), (20, 14023205), (25, 11218564), (28, 10016575), (35, 8013260), (50, 5609282), (70, 4006630), (100, 2804641), (140, 2003315), (175, 1602652), (257, 1091300), (350, 801326), (514, 545650), (700, 400663), (1028, 272825), (1285, 218260), (1559, 179900), (1799, 155900), (2570, 109130), (3118, 89950), (3598, 77950), (5140, 54565), (6236, 44975), (6425, 43652), (7196, 38975), (7795, 35980), (8995, 31180), (10913, 25700), (12850, 21826), (15590, 17990)]